# Carbon Training Centre vs Opti Metabolics

The clearest difference is update cadence: Opti Metabolics at every 10 days against Carbon Training Centre's every 5 months. Carbon Training Centre's advantage is iOS requirement (13.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Carbon Training Centre against 5.0 for Opti Metabolics. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Carbon Training Centre ships an update every 5 months, Opti Metabolics every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Carbon Training Centre | Opti Metabolics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/carbon-training-centre/id6741430421/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/opti-metabolics/id6760432815/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 10 days** |
| Monetization | Free | Free |
| Size | 52 MB | 50 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AD Health & Performance Consulting, LLC](https://appshunter.io/developer/1794137681) | [Opti Metabolics](https://appshunter.io/developer/1884448705) |

## What reviewers say

### Carbon Training Centre

[App page](https://appshunter.io/ios/app/carbon-training-centre/id6741430421)

This app focuses on human development through refined training, health, and injury rehabilitation practices. It encourages continuous self-improvement based on the principle that evolution never stops.

**Highlights:** Human Development Focus, Training Best Practices, Health Guidance, Injury Rehabilitation, Continuous Improvement

**Features:** macOS Compatibility

**In-app purchases:** none


### Opti Metabolics

[App page](https://appshunter.io/ios/app/opti-metabolics/id6760432815)

This app helps you understand your health by viewing biomarker reports and tracking disease risk factors. Log daily health metrics and receive a personalized feed of information. It serves as an educational tool and is not FDA-regulated.

**Highlights:** View biomarker reports, Track disease risk factors, Log daily health metrics, Personalized health feed, Educational health insights

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Carbon Training Centre free?

Carbon Training Centre is free to download, with no in-app purchases.

### Is Opti Metabolics free?

Opti Metabolics is free to download, with no in-app purchases.

### Which has better reviews, Carbon Training Centre or Opti Metabolics?

Carbon Training Centre and Opti Metabolics are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Carbon Training Centre or Opti Metabolics have ads?

Neither Carbon Training Centre nor Opti Metabolics shows ads.

### Which is updated more often, Carbon Training Centre or Opti Metabolics?

Carbon Training Centre ships an update every 5 months, and Opti Metabolics every 10 days. Most recently, Carbon Training Centre was updated on October 30, 2026 and Opti Metabolics on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*